Lamp support



June 16, 1925 G. E. PERRY LAMP SUPPORT Filed Sept. 8, 1921 jbercn'- lllli fill/47,1111

- aeorye EZZzof 7 97 23 Patented June 16,- 1925.

UNITED STATES PATENT OFFICE.

GEORGE ELLIOT PERRY, OF CHICAGO, ILLINOIS, ASSIGNOR TO WILLIAM F.CUMMINGS, OF CHICAGO, ILLINOIS.

LAMP SUPPORT.

Application filed September a, 1921,. Serial 1%. 499,319.

To all whom it may concern:

Be it known that I, GEORGE ELLIOT PERRY, a citizen of the United States,residin at Chicago, in the county of Cook and tate of Illinois, haveinvented certain new and useful Improvements in Lamp Supports, of whichthe following is a specification.

This invention relates to lamp supports.

It will be explained as applied to a support for a highway signal lamp.

' One of the objects of the invention is to .provide an improved lampsupport.

Another object is to provide a support allowing ready adjustment of theposition of the lalnp and the direction of light projection.

Another object is to provide a weather and waterproof support for anelectric lamp and for housing a lamp flasher or circuit interrupter.

Another object is to provide a support wherein the flasher is readilyinstalled and accessible for inspection, adjustment and re- Anotherobject is to provide a support which is inexpensive to manufacture, durable and ornamental.

Other objects and advantages will hereinafter appear.

An embodiment of the invention is illustrated in the accompanyingdrawing, wherem- Fig. 1 is a perspective of a support carrying foursignal lamps.

Fig. 2 is an enlarged sectional view of the upper part of the support.

Fig. 3 is a section of the tubular casing of the support takensubstantially at right angles to the section of Fig. 2, and

Fig. 4 is an enlarged sectional view of the lamp adjusting means.

The support chosen for illustration carries four lamps but it will bereadily apparent that the same may carry a greater or lesser number.

The support has a tubular casing 1 which may be made of any desiredshape, for example of substantially square cross section. The casing maybe made of suitable material such as cast iron.

The top of the casing is closed by an integrally formed wall 2. Thebottom is open to receive the end of a standard or post 3. The post maybe a suitable length of ordinary iron pipe. The lower edge of easing 1has a continuous inwardly projecting flange f1 which fits about thepost. Above flange 4 1s an inwardly projecting flange 5 which has anannular shoulder in which the end of pipe 3 fits. The casing and postare secured together by suitable means, such as screws. The height ofthe support may be varied by varying the amount the post is telesco edwithin the casing.

The ower end of post 3 is secured to and communicates with a suitablepedestal 6. Pedestal 6 provides a chamber to enclose and protect thebatteries which supply the lamps and flasher with current. The pedestalmay be sunk into the ground to provide a firm anchorage for the lampsupport, and offer little obstruction to trafiic and better protectionagainst injury by collision. The interior of casing 1 is provided withinwardly projecting lugs 7 which engage the cap ring 8 of an automaticflasher or interrupter 9. An electromagnetic flasher which has givenexcellent results is disclosed in copending application Serial No.395,514; filed July 12, 1920.

One side of easing 1 is provided with an opening through which theflasher and Wiring may be installed and readily inspected afterinstallation. This opening is closed by a door 10.

Around the margin of this opening the casin is provided with an inwardlyextending ange 11. Flange 11 has an inwardly extending groove or gutter12 extending continuously around the top and'both sides of the opening.The bottom of the flange has an inclined upper surface 13.

Door 10 has an inwardly projecting bevelsurfaced head 14 around theouter" edge thereof. Bead 14 fits into gutter 12, but not to the bottomthereof, and somewhat loosely against surface 13. The door may be heldin place by suitable means such as set screws When the door is set andsecured in place the gutter provides a ready passage for moisture whichmay collect about or be driven against the door. The water passesthrough the gutter around the door opening and runs out over theinclined surface 13. Suitable acking may be placed between the door andcasing 1, but, ordinarily, no packing Will be necessary since the gutterreadily carries off the water -and thus prevents the same from enteringthe casing.

prevent the rod from rotating.

A lamp bracket 20 for each lamp is mounted upon the top of easing 1. Thelamp bracket may be made of suitable material such as cast iron. Thelower surface of the base of each bracket is machined fiat to restsquarely upon the machined upper surface of end 2 of the casing. Eachbracket is perforated to receive a set screw 21 which extends into athreaded hole 22 in the top of the casing. This set screw firmly clampsthe lamp bracket to the top of the casing and, upon being loosened,allows ready horizontal pivotal movement and removal.

The upper end of each bracket 2(l is bifurcated to receive the end of areflector and lamp holder 23. Holder 23 also may be made of cast iron.Each fork of bracket 20 has a hole therethrough, one being threaded. Ascrew 24 pivotally secures holder 23 to bracket 20. The holder ispivotally movable in a vertical plane by loosening screw 24. A set screw25 may be added to assist in securing the holder in any adjustedposition.

The front end of holder 23 is cupped to receive the base of a. reflectorand lamp housing 26. Reflector 26 may be made of suitable material suchas sheet steel. The front of the reflector is closed by a suitable lens27. The lens is secured to the reflector by means of a channel shapedmetal band or split ring 28 which is tightened and clamped in place by ascrew 29. A packing washer may be inserted inside of ring 28 to make atighter joint, if desired.

Lamp 30 is held in a socket 31 which is supported on the end of a solidiron rod 32. Rod 32 is bored out and internally threaded at its rear endand passes through openings in reflector 26 and into a hole 33 in holder23. Hole 33 is drilled or cored through holder 23. The front end of hole33 fits rod 32 and is provided with a small axial slot 34. A pin 35 onrod 32 lies in slot 34 to The rear end of hole 33 is threaded to receivea threaded metal bushing 36.

A screw 37, whose head is larger than the opening in bushing 36, passesthrough hole 33 and threads into the end of rod 32. A screw plug 38threads into the rear end of hole 33 to close the hole and cover andprotect the head of screw 37 and bushing 36. Turning screw. 37 threadsthe same to a greater or less extent into or out of the. end of rod 32and consequently, when its head is again clamped against the shoulder inhole 33 by bushing 36, varies the position of lamp 30 relative to thefocus of reflector 26.

The wires 39 from the flasher pass to the lamp through holes 40 whichare cored or drilled in the bracket, holder and reflector, and a. hole41 in the top of easing 1. Other conductors 42 lead to a source ofcurrent such as batteries in pedestal 6.

.of a ready change in the direction of light projection. When theflasher is in place it is supported in a generally vertical position onlugs 7. When it isdesired or necessary to inspect or adjust theflasher'the casing, door is readily removed and the flasher may bewithdrawn entirely or may be sup-- ported in a horizontal position bythe lugs, as shown by the dotted lines of Fig. 3.

Having described my invention what I claim as new and desire to secureby Letters Patent, is i 1. A lamp support comprising a bracket having aplane surface adjacent one end for adjustable clamping to a base, andthe other end bifurcated, a lamp holder fitting within the bifurcatedend of the bracket and pivotally secured thereto, a lamp socket supportextending into a hole in the holder, and means for clamping the lampsupport in various adjusted positions relative to the holder.

2. A lamp support having a reflector holder with a shouldered openingtherethrough, a rod extending into said opening and carrying a lampsocket at one end and being internally threaded at the other end, ascrew threading into the rod and having a head adapted to abut againstthe shoulder in the opening of the holder, and a plug for clamping thehead of the screw against the holder and permitting access to the screwfor the purpose of adjusting the same.

3. A lamp support having a reflector and lamp holder with a holetherethrough, a reflector secured to the holder and having a holealigning with the hole in the holder, a rod passing through the alignedholes in the reflector and holder and carrying a lamp socket at one endand being threaded at the other, cooperating elements on the rod and theholder for preventing relative rotation therebetween but permittinglongitudinal movement of the rod, and means cooperating with thethreaded end of the rod for adjusting the position thereof.

4. A lamp support having a bracket, a reflector and lamp holderpivotally carried by the bracket, said holder having an openingtherethrough, a reflector carried by the holder, a rod extending intothe opening in the holder and projecting into the reflector,

an adjusting screw threading into one end i through, a reflector securedto the holder and having a hole aligning with the hole in the holder, arod passing through the aligned holes in the holder and the reflectorand adapted to support a lamp socket at one end within the reflector andbeing internally threaded at the other end, a screw threading into therod and having a head adapted to abut the shoulder in the holder 10 sothat when the head is against the shoulder the rod projects into thereflector a distance depending upon the amount the screw is threadedinto the rod, and a plug for sealing the hole in the holder to preventaccess to the screw and for clamping the head of the screw against theshoulder.

In testimony whereof I hereunto subscribe my name.

GEORGE ELLIOT PERRY.

